Just want to report that I've been running SLUB on i386, both in -mmand with slub-i386-support.patch applied to 2.6.21-git, and observedno problems with it. I'm anxious that it (or an equivalent) go into2.6.22-rc1, i386 being now the last ARCH_USES_SLAB_PAGE_STRUCT holdout.

In the frenzy over PowerPC, maybe Linus overlooked that i386was still not supporting SLUB; and I fear that once people get"# CONFIG_SLUB is not set" into their .config, they're less likely toswitch over to testing CONFIG_SLUB=y - I remain anxious that it seeas much testing as possible (but under EXPERIMENTAL for 2.6.22, yes).

Though when I look at the patchset (copied below), I do wonder whyit puts a quicklist_trim() into i386's cpu_idle() and flush_tlb_mm():neither is where I'd expect us to be secretly freeing pages. Ah,several arches do it in cpu_idle(): how odd, oh well.